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Finding the Fourth Proportional to 111,002.40, 153,174.56 and 63,246.42

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Solution

The fourth proportional to 111,002.40, 153,174.56 and 63,246.42 is: 87,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,002.40 : 153,174.56 = 63,246.42 : x
  2. Step 2: Convert to fraction form
    111,002.40/153,174.56 = 63,246.42/x
  3. Step 3: Cross multiply
    111,002.40x = 153,174.56 × 63,246.42
  4. Step 4: Simplify right side
    111,002.40x = 9,687,742,555.08
  5. Step 5: Solve for x
    x = 9,687,742,555.08/111,002.40
  6. Step 6: Final answer
    x = 87,275.07

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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.