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Finding the Fourth Proportional to 134,862.95, 186,109.95 and 74,433.59

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Solution

The fourth proportional to 134,862.95, 186,109.95 and 74,433.59 is: 102,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,862.95 : 186,109.95 = 74,433.59 : x
  2. Step 2: Convert to fraction form
    134,862.95/186,109.95 = 74,433.59/x
  3. Step 3: Cross multiply
    134,862.95x = 186,109.95 × 74,433.59
  4. Step 4: Simplify right side
    134,862.95x = 13,852,831,713.22
  5. Step 5: Solve for x
    x = 13,852,831,713.22/134,862.95
  6. Step 6: Final answer
    x = 102,717.85

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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.