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Finding the Fourth Proportional to 63,442.76, 87,547.22 and 35,146.40

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Solution

The fourth proportional to 63,442.76, 87,547.22 and 35,146.40 is: 48,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,442.76 : 87,547.22 = 35,146.40 : x
  2. Step 2: Convert to fraction form
    63,442.76/87,547.22 = 35,146.40/x
  3. Step 3: Cross multiply
    63,442.76x = 87,547.22 × 35,146.40
  4. Step 4: Simplify right side
    63,442.76x = 3,076,969,437.28
  5. Step 5: Solve for x
    x = 3,076,969,437.28/63,442.76
  6. Step 6: Final answer
    x = 48,499.93

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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.