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Finding the Fourth Proportional to 75,354.80, 112,837.80 and 59,802.80

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Solution

The fourth proportional to 75,354.80, 112,837.80 and 59,802.80 is: 89,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,354.80 : 112,837.80 = 59,802.80 : x
  2. Step 2: Convert to fraction form
    75,354.80/112,837.80 = 59,802.80/x
  3. Step 3: Cross multiply
    75,354.80x = 112,837.80 × 59,802.80
  4. Step 4: Simplify right side
    75,354.80x = 6,748,016,385.84
  5. Step 5: Solve for x
    x = 6,748,016,385.84/75,354.80
  6. Step 6: Final answer
    x = 89,549.92

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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.