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Finding the Fourth Proportional to 74,706.60, 112,059.42 and 30,332.91

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Solution

The fourth proportional to 74,706.60, 112,059.42 and 30,332.91 is: 45,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,706.60 : 112,059.42 = 30,332.91 : x
  2. Step 2: Convert to fraction form
    74,706.60/112,059.42 = 30,332.91/x
  3. Step 3: Cross multiply
    74,706.60x = 112,059.42 × 30,332.91
  4. Step 4: Simplify right side
    74,706.60x = 3,399,088,301.51
  5. Step 5: Solve for x
    x = 3,399,088,301.51/74,706.60
  6. Step 6: Final answer
    x = 45,499.17

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1.5x scale

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.