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Finding the Fourth Proportional to 176,220.99, 243,127.06 and 99,732.49

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Solution

The fourth proportional to 176,220.99, 243,127.06 and 99,732.49 is: 137,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,220.99 : 243,127.06 = 99,732.49 : x
  2. Step 2: Convert to fraction form
    176,220.99/243,127.06 = 99,732.49/x
  3. Step 3: Cross multiply
    176,220.99x = 243,127.06 × 99,732.49
  4. Step 4: Simplify right side
    176,220.99x = 24,247,667,080.18
  5. Step 5: Solve for x
    x = 24,247,667,080.18/176,220.99
  6. Step 6: Final answer
    x = 137,598.06

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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.