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Finding the Fourth Proportional to 74,498.88, 102,810.72 and 40,966.08

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Solution

The fourth proportional to 74,498.88, 102,810.72 and 40,966.08 is: 56,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.88 : 102,810.72 = 40,966.08 : x
  2. Step 2: Convert to fraction form
    74,498.88/102,810.72 = 40,966.08/x
  3. Step 3: Cross multiply
    74,498.88x = 102,810.72 × 40,966.08
  4. Step 4: Simplify right side
    74,498.88x = 4,211,752,180.38
  5. Step 5: Solve for x
    x = 4,211,752,180.38/74,498.88
  6. Step 6: Final answer
    x = 56,534.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.