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Finding the Fourth Proportional to 479,535.95, 719,303.72 and 142,575.14

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Solution

The fourth proportional to 479,535.95, 719,303.72 and 142,575.14 is: 213,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,535.95 : 719,303.72 = 142,575.14 : x
  2. Step 2: Convert to fraction form
    479,535.95/719,303.72 = 142,575.14/x
  3. Step 3: Cross multiply
    479,535.95x = 719,303.72 × 142,575.14
  4. Step 4: Simplify right side
    479,535.95x = 102,554,824,272.13
  5. Step 5: Solve for x
    x = 102,554,824,272.13/479,535.95
  6. Step 6: Final answer
    x = 213,862.64

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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.