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Finding the Fourth Proportional to 316,075.29, 474,034.01 and 123,988.76

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Solution

The fourth proportional to 316,075.29, 474,034.01 and 123,988.76 is: 185,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,075.29 : 474,034.01 = 123,988.76 : x
  2. Step 2: Convert to fraction form
    316,075.29/474,034.01 = 123,988.76/x
  3. Step 3: Cross multiply
    316,075.29x = 474,034.01 × 123,988.76
  4. Step 4: Simplify right side
    316,075.29x = 58,774,886,107.61
  5. Step 5: Solve for x
    x = 58,774,886,107.61/316,075.29
  6. Step 6: Final answer
    x = 185,952.17

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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.