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Finding the Fourth Proportional to 127,793.40, 176,356.08 and 70,434.81

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Solution

The fourth proportional to 127,793.40, 176,356.08 and 70,434.81 is: 97,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,793.40 : 176,356.08 = 70,434.81 : x
  2. Step 2: Convert to fraction form
    127,793.40/176,356.08 = 70,434.81/x
  3. Step 3: Cross multiply
    127,793.40x = 176,356.08 × 70,434.81
  4. Step 4: Simplify right side
    127,793.40x = 12,421,606,987.14
  5. Step 5: Solve for x
    x = 12,421,606,987.14/127,793.40
  6. Step 6: Final answer
    x = 97,200.69

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