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Finding the Fourth Proportional to 352,359, 528,616.26 and 130,743

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Solution

The fourth proportional to 352,359, 528,616.26 and 130,743 is: 196,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,359 : 528,616.26 = 130,743 : x
  2. Step 2: Convert to fraction form
    352,359/528,616.26 = 130,743/x
  3. Step 3: Cross multiply
    352,359x = 528,616.26 × 130,743
  4. Step 4: Simplify right side
    352,359x = 69,112,875,681.18
  5. Step 5: Solve for x
    x = 69,112,875,681.18/352,359
  6. Step 6: Final answer
    x = 196,143.35

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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.