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Finding the Fourth Proportional to 74,259.59, 102,668.72 and 56,326.19

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Solution

The fourth proportional to 74,259.59, 102,668.72 and 56,326.19 is: 77,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,259.59 : 102,668.72 = 56,326.19 : x
  2. Step 2: Convert to fraction form
    74,259.59/102,668.72 = 56,326.19/x
  3. Step 3: Cross multiply
    74,259.59x = 102,668.72 × 56,326.19
  4. Step 4: Simplify right side
    74,259.59x = 5,782,937,034.80
  5. Step 5: Solve for x
    x = 5,782,937,034.80/74,259.59
  6. Step 6: Final answer
    x = 77,874.62

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1.5x scale

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.