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Finding the Fourth Proportional to 105,008.40, 157,411.80 and 34,851.60

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Solution

The fourth proportional to 105,008.40, 157,411.80 and 34,851.60 is: 52,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,008.40 : 157,411.80 = 34,851.60 : x
  2. Step 2: Convert to fraction form
    105,008.40/157,411.80 = 34,851.60/x
  3. Step 3: Cross multiply
    105,008.40x = 157,411.80 × 34,851.60
  4. Step 4: Simplify right side
    105,008.40x = 5,486,053,088.88
  5. Step 5: Solve for x
    x = 5,486,053,088.88/105,008.40
  6. Step 6: Final answer
    x = 52,243.95

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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.