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Finding the Fourth Proportional to 158,476.32, 218,669.52 and 90,462.24

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Solution

The fourth proportional to 158,476.32, 218,669.52 and 90,462.24 is: 124,822.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,476.32 : 218,669.52 = 90,462.24 : x
  2. Step 2: Convert to fraction form
    158,476.32/218,669.52 = 90,462.24/x
  3. Step 3: Cross multiply
    158,476.32x = 218,669.52 × 90,462.24
  4. Step 4: Simplify right side
    158,476.32x = 19,781,334,598.92
  5. Step 5: Solve for x
    x = 19,781,334,598.92/158,476.32
  6. Step 6: Final answer
    x = 124,822.02

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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.