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Finding the Fourth Proportional to 253,597.61, 349,960.43 and 140,417.93

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Solution

The fourth proportional to 253,597.61, 349,960.43 and 140,417.93 is: 193,774.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,597.61 : 349,960.43 = 140,417.93 : x
  2. Step 2: Convert to fraction form
    253,597.61/349,960.43 = 140,417.93/x
  3. Step 3: Cross multiply
    253,597.61x = 349,960.43 × 140,417.93
  4. Step 4: Simplify right side
    253,597.61x = 49,140,718,460.42
  5. Step 5: Solve for x
    x = 49,140,718,460.42/253,597.61
  6. Step 6: Final answer
    x = 193,774.38

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1.5x scale

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.