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Finding the Fourth Proportional to 132,070.60, 197,814.30 and 84,831.40

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Solution

The fourth proportional to 132,070.60, 197,814.30 and 84,831.40 is: 127,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,070.60 : 197,814.30 = 84,831.40 : x
  2. Step 2: Convert to fraction form
    132,070.60/197,814.30 = 84,831.40/x
  3. Step 3: Cross multiply
    132,070.60x = 197,814.30 × 84,831.40
  4. Step 4: Simplify right side
    132,070.60x = 16,780,864,009.02
  5. Step 5: Solve for x
    x = 16,780,864,009.02/132,070.60
  6. Step 6: Final answer
    x = 127,059.80

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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.