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Finding the Fourth Proportional to 352,663.17, 528,925.87 and 112,712.71

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Solution

The fourth proportional to 352,663.17, 528,925.87 and 112,712.71 is: 169,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,663.17 : 528,925.87 = 112,712.71 : x
  2. Step 2: Convert to fraction form
    352,663.17/528,925.87 = 112,712.71/x
  3. Step 3: Cross multiply
    352,663.17x = 528,925.87 × 112,712.71
  4. Step 4: Simplify right side
    352,663.17x = 59,616,668,196.81
  5. Step 5: Solve for x
    x = 59,616,668,196.81/352,663.17
  6. Step 6: Final answer
    x = 169,047.05

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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.