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Finding the Fourth Proportional to 127,490.68, 175,934.64 and 70,900.84

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Solution

The fourth proportional to 127,490.68, 175,934.64 and 70,900.84 is: 97,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,490.68 : 175,934.64 = 70,900.84 : x
  2. Step 2: Convert to fraction form
    127,490.68/175,934.64 = 70,900.84/x
  3. Step 3: Cross multiply
    127,490.68x = 175,934.64 × 70,900.84
  4. Step 4: Simplify right side
    127,490.68x = 12,473,913,761.10
  5. Step 5: Solve for x
    x = 12,473,913,761.10/127,490.68
  6. Step 6: Final answer
    x = 97,841.77

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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.