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Finding the Fourth Proportional to 407,237.60, 610,710.06 and 140,925.80

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Solution

The fourth proportional to 407,237.60, 610,710.06 and 140,925.80 is: 211,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,237.60 : 610,710.06 = 140,925.80 : x
  2. Step 2: Convert to fraction form
    407,237.60/610,710.06 = 140,925.80/x
  3. Step 3: Cross multiply
    407,237.60x = 610,710.06 × 140,925.80
  4. Step 4: Simplify right side
    407,237.60x = 86,064,803,773.55
  5. Step 5: Solve for x
    x = 86,064,803,773.55/407,237.60
  6. Step 6: Final answer
    x = 211,338.06

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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.