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Finding the Fourth Proportional to 176,018.32, 242,919.10 and 148,643.56

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Solution

The fourth proportional to 176,018.32, 242,919.10 and 148,643.56 is: 205,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,018.32 : 242,919.10 = 148,643.56 : x
  2. Step 2: Convert to fraction form
    176,018.32/242,919.10 = 148,643.56/x
  3. Step 3: Cross multiply
    176,018.32x = 242,919.10 × 148,643.56
  4. Step 4: Simplify right side
    176,018.32x = 36,108,359,816.00
  5. Step 5: Solve for x
    x = 36,108,359,816.00/176,018.32
  6. Step 6: Final answer
    x = 205,139.78

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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.