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Finding the Fourth Proportional to 96,487.68, 145,388.76 and 79,341.60

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Solution

The fourth proportional to 96,487.68, 145,388.76 and 79,341.60 is: 119,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,487.68 : 145,388.76 = 79,341.60 : x
  2. Step 2: Convert to fraction form
    96,487.68/145,388.76 = 79,341.60/x
  3. Step 3: Cross multiply
    96,487.68x = 145,388.76 × 79,341.60
  4. Step 4: Simplify right side
    96,487.68x = 11,535,376,840.42
  5. Step 5: Solve for x
    x = 11,535,376,840.42/96,487.68
  6. Step 6: Final answer
    x = 119,552.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.