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Finding the Fourth Proportional to 604,389.16, 906,616.08 and 155,113.92

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Solution

The fourth proportional to 604,389.16, 906,616.08 and 155,113.92 is: 232,679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,389.16 : 906,616.08 = 155,113.92 : x
  2. Step 2: Convert to fraction form
    604,389.16/906,616.08 = 155,113.92/x
  3. Step 3: Cross multiply
    604,389.16x = 906,616.08 × 155,113.92
  4. Step 4: Simplify right side
    604,389.16x = 140,628,774,103.83
  5. Step 5: Solve for x
    x = 140,628,774,103.83/604,389.16
  6. Step 6: Final answer
    x = 232,679.18

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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.