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Finding the Fourth Proportional to 105,688.95, 145,851.95 and 60,372.93

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Solution

The fourth proportional to 105,688.95, 145,851.95 and 60,372.93 is: 83,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,688.95 : 145,851.95 = 60,372.93 : x
  2. Step 2: Convert to fraction form
    105,688.95/145,851.95 = 60,372.93/x
  3. Step 3: Cross multiply
    105,688.95x = 145,851.95 × 60,372.93
  4. Step 4: Simplify right side
    105,688.95x = 8,805,509,265.85
  5. Step 5: Solve for x
    x = 8,805,509,265.85/105,688.95
  6. Step 6: Final answer
    x = 83,315.33

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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.