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Finding the Fourth Proportional to 253,223.51, 349,421.78 and 151,234.82

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Solution

The fourth proportional to 253,223.51, 349,421.78 and 151,234.82 is: 208,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,223.51 : 349,421.78 = 151,234.82 : x
  2. Step 2: Convert to fraction form
    253,223.51/349,421.78 = 151,234.82/x
  3. Step 3: Cross multiply
    253,223.51x = 349,421.78 × 151,234.82
  4. Step 4: Simplify right side
    253,223.51x = 52,844,740,002.38
  5. Step 5: Solve for x
    x = 52,844,740,002.38/253,223.51
  6. Step 6: Final answer
    x = 208,688.13

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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.