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Finding the Fourth Proportional to 105,597.76, 145,724.48 and 57,851.04

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Solution

The fourth proportional to 105,597.76, 145,724.48 and 57,851.04 is: 79,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,597.76 : 145,724.48 = 57,851.04 : x
  2. Step 2: Convert to fraction form
    105,597.76/145,724.48 = 57,851.04/x
  3. Step 3: Cross multiply
    105,597.76x = 145,724.48 × 57,851.04
  4. Step 4: Simplify right side
    105,597.76x = 8,430,312,721.46
  5. Step 5: Solve for x
    x = 8,430,312,721.46/105,597.76
  6. Step 6: Final answer
    x = 79,834.20

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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.