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Finding the Fourth Proportional to 572,223.13, 858,465.65 and 248,065.63

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Solution

The fourth proportional to 572,223.13, 858,465.65 and 248,065.63 is: 372,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,223.13 : 858,465.65 = 248,065.63 : x
  2. Step 2: Convert to fraction form
    572,223.13/858,465.65 = 248,065.63/x
  3. Step 3: Cross multiply
    572,223.13x = 858,465.65 × 248,065.63
  4. Step 4: Simplify right side
    572,223.13x = 212,955,822,300.61
  5. Step 5: Solve for x
    x = 212,955,822,300.61/572,223.13
  6. Step 6: Final answer
    x = 372,155.22

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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.