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Finding the Fourth Proportional to 162,570.51, 224,424 and 122,299.61

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Solution

The fourth proportional to 162,570.51, 224,424 and 122,299.61 is: 168,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,570.51 : 224,424 = 122,299.61 : x
  2. Step 2: Convert to fraction form
    162,570.51/224,424 = 122,299.61/x
  3. Step 3: Cross multiply
    162,570.51x = 224,424 × 122,299.61
  4. Step 4: Simplify right side
    162,570.51x = 27,446,966,552.52
  5. Step 5: Solve for x
    x = 27,446,966,552.52/162,570.51
  6. Step 6: Final answer
    x = 168,831.15

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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.