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Finding the Fourth Proportional to 93,648.40, 140,472.60 and 93,065.20

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Solution

The fourth proportional to 93,648.40, 140,472.60 and 93,065.20 is: 139,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,648.40 : 140,472.60 = 93,065.20 : x
  2. Step 2: Convert to fraction form
    93,648.40/140,472.60 = 93,065.20/x
  3. Step 3: Cross multiply
    93,648.40x = 140,472.60 × 93,065.20
  4. Step 4: Simplify right side
    93,648.40x = 13,073,110,613.52
  5. Step 5: Solve for x
    x = 13,073,110,613.52/93,648.40
  6. Step 6: Final answer
    x = 139,597.80

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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.