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Finding the Fourth Proportional to 356,437.40, 534,656.10 and 107,119.40

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Solution

The fourth proportional to 356,437.40, 534,656.10 and 107,119.40 is: 160,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,437.40 : 534,656.10 = 107,119.40 : x
  2. Step 2: Convert to fraction form
    356,437.40/534,656.10 = 107,119.40/x
  3. Step 3: Cross multiply
    356,437.40x = 534,656.10 × 107,119.40
  4. Step 4: Simplify right side
    356,437.40x = 57,272,040,638.34
  5. Step 5: Solve for x
    x = 57,272,040,638.34/356,437.40
  6. Step 6: Final answer
    x = 160,679.10

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1.5x scale

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.