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Finding the Fourth Proportional to 340,230.72, 510,419.88 and 103,567.26

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Solution

The fourth proportional to 340,230.72, 510,419.88 and 103,567.26 is: 155,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,230.72 : 510,419.88 = 103,567.26 : x
  2. Step 2: Convert to fraction form
    340,230.72/510,419.88 = 103,567.26/x
  3. Step 3: Cross multiply
    340,230.72x = 510,419.88 × 103,567.26
  4. Step 4: Simplify right side
    340,230.72x = 52,862,788,421.13
  5. Step 5: Solve for x
    x = 52,862,788,421.13/340,230.72
  6. Step 6: Final answer
    x = 155,373.35

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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.