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Finding the Fourth Proportional to 66,437.40, 99,461.70 and 44,275.80

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Solution

The fourth proportional to 66,437.40, 99,461.70 and 44,275.80 is: 66,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,437.40 : 99,461.70 = 44,275.80 : x
  2. Step 2: Convert to fraction form
    66,437.40/99,461.70 = 44,275.80/x
  3. Step 3: Cross multiply
    66,437.40x = 99,461.70 × 44,275.80
  4. Step 4: Simplify right side
    66,437.40x = 4,403,746,336.86
  5. Step 5: Solve for x
    x = 4,403,746,336.86/66,437.40
  6. Step 6: Final answer
    x = 66,284.15

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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.