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Finding the Fourth Proportional to 106,051.59, 159,192.66 and 42,915.18

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Solution

The fourth proportional to 106,051.59, 159,192.66 and 42,915.18 is: 64,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,051.59 : 159,192.66 = 42,915.18 : x
  2. Step 2: Convert to fraction form
    106,051.59/159,192.66 = 42,915.18/x
  3. Step 3: Cross multiply
    106,051.59x = 159,192.66 × 42,915.18
  4. Step 4: Simplify right side
    106,051.59x = 6,831,780,648.04
  5. Step 5: Solve for x
    x = 6,831,780,648.04/106,051.59
  6. Step 6: Final answer
    x = 64,419.41

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1.5x scale

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.