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Finding the Fourth Proportional to 561,018.95, 841,528.43 and 140,294.83

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Solution

The fourth proportional to 561,018.95, 841,528.43 and 140,294.83 is: 210,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,018.95 : 841,528.43 = 140,294.83 : x
  2. Step 2: Convert to fraction form
    561,018.95/841,528.43 = 140,294.83/x
  3. Step 3: Cross multiply
    561,018.95x = 841,528.43 × 140,294.83
  4. Step 4: Simplify right side
    561,018.95x = 118,062,088,027.02
  5. Step 5: Solve for x
    x = 118,062,088,027.02/561,018.95
  6. Step 6: Final answer
    x = 210,442.25

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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.