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Finding the Fourth Proportional to 93,432.90, 140,149.35 and 77,030.40

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Solution

The fourth proportional to 93,432.90, 140,149.35 and 77,030.40 is: 115,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.90 : 140,149.35 = 77,030.40 : x
  2. Step 2: Convert to fraction form
    93,432.90/140,149.35 = 77,030.40/x
  3. Step 3: Cross multiply
    93,432.90x = 140,149.35 × 77,030.40
  4. Step 4: Simplify right side
    93,432.90x = 10,795,760,490.24
  5. Step 5: Solve for x
    x = 10,795,760,490.24/93,432.90
  6. Step 6: Final answer
    x = 115,545.60

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1.5x scale

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.