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Finding the Fourth Proportional to 127,807.70, 191,711.55 and 34,322.90

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Solution

The fourth proportional to 127,807.70, 191,711.55 and 34,322.90 is: 51,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,807.70 : 191,711.55 = 34,322.90 : x
  2. Step 2: Convert to fraction form
    127,807.70/191,711.55 = 34,322.90/x
  3. Step 3: Cross multiply
    127,807.70x = 191,711.55 × 34,322.90
  4. Step 4: Simplify right side
    127,807.70x = 6,580,096,359.50
  5. Step 5: Solve for x
    x = 6,580,096,359.50/127,807.70
  6. Step 6: Final answer
    x = 51,484.35

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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.