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Finding the Fourth Proportional to 145,130.30, 217,779.52 and 60,883

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Solution

The fourth proportional to 145,130.30, 217,779.52 and 60,883 is: 91,359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,130.30 : 217,779.52 = 60,883 : x
  2. Step 2: Convert to fraction form
    145,130.30/217,779.52 = 60,883/x
  3. Step 3: Cross multiply
    145,130.30x = 217,779.52 × 60,883
  4. Step 4: Simplify right side
    145,130.30x = 13,259,070,516.16
  5. Step 5: Solve for x
    x = 13,259,070,516.16/145,130.30
  6. Step 6: Final answer
    x = 91,359.77

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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.