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Finding the Fourth Proportional to 59,136.40, 88,704.60 and 28,032.40

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Solution

The fourth proportional to 59,136.40, 88,704.60 and 28,032.40 is: 42,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,136.40 : 88,704.60 = 28,032.40 : x
  2. Step 2: Convert to fraction form
    59,136.40/88,704.60 = 28,032.40/x
  3. Step 3: Cross multiply
    59,136.40x = 88,704.60 × 28,032.40
  4. Step 4: Simplify right side
    59,136.40x = 2,486,602,829.04
  5. Step 5: Solve for x
    x = 2,486,602,829.04/59,136.40
  6. Step 6: Final answer
    x = 42,048.60

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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.