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Finding the Fourth Proportional to 561,066.48, 841,593.96 and 140,342.40

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Solution

The fourth proportional to 561,066.48, 841,593.96 and 140,342.40 is: 210,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,066.48 : 841,593.96 = 140,342.40 : x
  2. Step 2: Convert to fraction form
    561,066.48/841,593.96 = 140,342.40/x
  3. Step 3: Cross multiply
    561,066.48x = 841,593.96 × 140,342.40
  4. Step 4: Simplify right side
    561,066.48x = 118,111,316,171.90
  5. Step 5: Solve for x
    x = 118,111,316,171.90/561,066.48
  6. Step 6: Final answer
    x = 210,512.16

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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.