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Finding the Fourth Proportional to 272,955.38, 376,686.34 and 158,234.48

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Solution

The fourth proportional to 272,955.38, 376,686.34 and 158,234.48 is: 218,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,955.38 : 376,686.34 = 158,234.48 : x
  2. Step 2: Convert to fraction form
    272,955.38/376,686.34 = 158,234.48/x
  3. Step 3: Cross multiply
    272,955.38x = 376,686.34 × 158,234.48
  4. Step 4: Simplify right side
    272,955.38x = 59,604,767,133.00
  5. Step 5: Solve for x
    x = 59,604,767,133.00/272,955.38
  6. Step 6: Final answer
    x = 218,368.17

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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.