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Finding the Fourth Proportional to 58,862.40, 88,466.40 and 51,259.20

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Solution

The fourth proportional to 58,862.40, 88,466.40 and 51,259.20 is: 77,039.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,862.40 : 88,466.40 = 51,259.20 : x
  2. Step 2: Convert to fraction form
    58,862.40/88,466.40 = 51,259.20/x
  3. Step 3: Cross multiply
    58,862.40x = 88,466.40 × 51,259.20
  4. Step 4: Simplify right side
    58,862.40x = 4,534,716,890.88
  5. Step 5: Solve for x
    x = 4,534,716,890.88/58,862.40
  6. Step 6: Final answer
    x = 77,039.28

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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.