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Finding the Fourth Proportional to 251,547.72, 377,322.18 and 74,056.87

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Solution

The fourth proportional to 251,547.72, 377,322.18 and 74,056.87 is: 111,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,547.72 : 377,322.18 = 74,056.87 : x
  2. Step 2: Convert to fraction form
    251,547.72/377,322.18 = 74,056.87/x
  3. Step 3: Cross multiply
    251,547.72x = 377,322.18 × 74,056.87
  4. Step 4: Simplify right side
    251,547.72x = 27,943,299,632.38
  5. Step 5: Solve for x
    x = 27,943,299,632.38/251,547.72
  6. Step 6: Final answer
    x = 111,085.48

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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.