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Finding the Fourth Proportional to 127,458.62, 175,891.82 and 70,869.50

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Solution

The fourth proportional to 127,458.62, 175,891.82 and 70,869.50 is: 97,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,458.62 : 175,891.82 = 70,869.50 : x
  2. Step 2: Convert to fraction form
    127,458.62/175,891.82 = 70,869.50/x
  3. Step 3: Cross multiply
    127,458.62x = 175,891.82 × 70,869.50
  4. Step 4: Simplify right side
    127,458.62x = 12,465,365,337.49
  5. Step 5: Solve for x
    x = 12,465,365,337.49/127,458.62
  6. Step 6: Final answer
    x = 97,799.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.