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Finding the Fourth Proportional to 106,070.76, 159,150.20 and 42,935.51

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Solution

The fourth proportional to 106,070.76, 159,150.20 and 42,935.51 is: 64,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,070.76 : 159,150.20 = 42,935.51 : x
  2. Step 2: Convert to fraction form
    106,070.76/159,150.20 = 42,935.51/x
  3. Step 3: Cross multiply
    106,070.76x = 159,150.20 × 42,935.51
  4. Step 4: Simplify right side
    106,070.76x = 6,833,195,003.60
  5. Step 5: Solve for x
    x = 6,833,195,003.60/106,070.76
  6. Step 6: Final answer
    x = 64,421.10

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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.