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Finding the Fourth Proportional to 93,221.10, 139,831.65 and 67,851.90

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Solution

The fourth proportional to 93,221.10, 139,831.65 and 67,851.90 is: 101,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,221.10 : 139,831.65 = 67,851.90 : x
  2. Step 2: Convert to fraction form
    93,221.10/139,831.65 = 67,851.90/x
  3. Step 3: Cross multiply
    93,221.10x = 139,831.65 × 67,851.90
  4. Step 4: Simplify right side
    93,221.10x = 9,487,843,132.64
  5. Step 5: Solve for x
    x = 9,487,843,132.64/93,221.10
  6. Step 6: Final answer
    x = 101,777.85

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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.