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Finding the Fourth Proportional to 93,543.60, 129,089.60 and 51,101.76

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Solution

The fourth proportional to 93,543.60, 129,089.60 and 51,101.76 is: 70,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,543.60 : 129,089.60 = 51,101.76 : x
  2. Step 2: Convert to fraction form
    93,543.60/129,089.60 = 51,101.76/x
  3. Step 3: Cross multiply
    93,543.60x = 129,089.60 × 51,101.76
  4. Step 4: Simplify right side
    93,543.60x = 6,596,705,757.70
  5. Step 5: Solve for x
    x = 6,596,705,757.70/93,543.60
  6. Step 6: Final answer
    x = 70,520.12

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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.