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Finding the Fourth Proportional to 74,828.60, 112,398.42 and 59,354.36

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Solution

The fourth proportional to 74,828.60, 112,398.42 and 59,354.36 is: 89,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.60 : 112,398.42 = 59,354.36 : x
  2. Step 2: Convert to fraction form
    74,828.60/112,398.42 = 59,354.36/x
  3. Step 3: Cross multiply
    74,828.60x = 112,398.42 × 59,354.36
  4. Step 4: Simplify right side
    74,828.60x = 6,671,336,284.11
  5. Step 5: Solve for x
    x = 6,671,336,284.11/74,828.60
  6. Step 6: Final answer
    x = 89,154.90

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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.