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Finding the Fourth Proportional to 145,875.61, 218,836.77 and 61,636.59

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Solution

The fourth proportional to 145,875.61, 218,836.77 and 61,636.59 is: 92,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,875.61 : 218,836.77 = 61,636.59 : x
  2. Step 2: Convert to fraction form
    145,875.61/218,836.77 = 61,636.59/x
  3. Step 3: Cross multiply
    145,875.61x = 218,836.77 × 61,636.59
  4. Step 4: Simplify right side
    145,875.61x = 13,488,352,269.41
  5. Step 5: Solve for x
    x = 13,488,352,269.41/145,875.61
  6. Step 6: Final answer
    x = 92,464.75

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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.