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Finding the Fourth Proportional to 157,248, 235,872 and 46,448.64

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Solution

The fourth proportional to 157,248, 235,872 and 46,448.64 is: 69,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,248 : 235,872 = 46,448.64 : x
  2. Step 2: Convert to fraction form
    157,248/235,872 = 46,448.64/x
  3. Step 3: Cross multiply
    157,248x = 235,872 × 46,448.64
  4. Step 4: Simplify right side
    157,248x = 10,955,933,614.08
  5. Step 5: Solve for x
    x = 10,955,933,614.08/157,248
  6. Step 6: Final answer
    x = 69,672.96

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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.