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Finding the Fourth Proportional to 404,184,045.60, 606,276,068.40 and 145,439,200.80

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Solution

The fourth proportional to 404,184,045.60, 606,276,068.40 and 145,439,200.80 is: 218,158,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,184,045.60 : 606,276,068.40 = 145,439,200.80 : x
  2. Step 2: Convert to fraction form
    404,184,045.60/606,276,068.40 = 145,439,200.80/x
  3. Step 3: Cross multiply
    404,184,045.60x = 606,276,068.40 × 145,439,200.80
  4. Step 4: Simplify right side
    404,184,045.60x = 88,176,306,852,262,144
  5. Step 5: Solve for x
    x = 88,176,306,852,262,144/404,184,045.60
  6. Step 6: Final answer
    x = 218,158,801.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.