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Finding the Fourth Proportional to 66,205.80, 99,308.70 and 62,925.30

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Solution

The fourth proportional to 66,205.80, 99,308.70 and 62,925.30 is: 94,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,205.80 : 99,308.70 = 62,925.30 : x
  2. Step 2: Convert to fraction form
    66,205.80/99,308.70 = 62,925.30/x
  3. Step 3: Cross multiply
    66,205.80x = 99,308.70 × 62,925.30
  4. Step 4: Simplify right side
    66,205.80x = 6,249,029,740.11
  5. Step 5: Solve for x
    x = 6,249,029,740.11/66,205.80
  6. Step 6: Final answer
    x = 94,387.95

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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.