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Finding the Fourth Proportional to 372,088.86, 513,479.88 and 202,322.94

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Solution

The fourth proportional to 372,088.86, 513,479.88 and 202,322.94 is: 279,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,088.86 : 513,479.88 = 202,322.94 : x
  2. Step 2: Convert to fraction form
    372,088.86/513,479.88 = 202,322.94/x
  3. Step 3: Cross multiply
    372,088.86x = 513,479.88 × 202,322.94
  4. Step 4: Simplify right side
    372,088.86x = 103,888,758,952.45
  5. Step 5: Solve for x
    x = 103,888,758,952.45/372,088.86
  6. Step 6: Final answer
    x = 279,204.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.