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Finding the Fourth Proportional to 74,365.60, 102,621.72 and 46,070.68

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Solution

The fourth proportional to 74,365.60, 102,621.72 and 46,070.68 is: 63,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,365.60 : 102,621.72 = 46,070.68 : x
  2. Step 2: Convert to fraction form
    74,365.60/102,621.72 = 46,070.68/x
  3. Step 3: Cross multiply
    74,365.60x = 102,621.72 × 46,070.68
  4. Step 4: Simplify right side
    74,365.60x = 4,727,852,423.17
  5. Step 5: Solve for x
    x = 4,727,852,423.17/74,365.60
  6. Step 6: Final answer
    x = 63,575.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.