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Finding the Fourth Proportional to 108,587.80, 162,881.70 and 93,035.80

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Solution

The fourth proportional to 108,587.80, 162,881.70 and 93,035.80 is: 139,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,587.80 : 162,881.70 = 93,035.80 : x
  2. Step 2: Convert to fraction form
    108,587.80/162,881.70 = 93,035.80/x
  3. Step 3: Cross multiply
    108,587.80x = 162,881.70 × 93,035.80
  4. Step 4: Simplify right side
    108,587.80x = 15,153,829,264.86
  5. Step 5: Solve for x
    x = 15,153,829,264.86/108,587.80
  6. Step 6: Final answer
    x = 139,553.70

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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.