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Finding the Fourth Proportional to 121,547.34, 167,734.98 and 67,831.74

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Solution

The fourth proportional to 121,547.34, 167,734.98 and 67,831.74 is: 93,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,547.34 : 167,734.98 = 67,831.74 : x
  2. Step 2: Convert to fraction form
    121,547.34/167,734.98 = 67,831.74/x
  3. Step 3: Cross multiply
    121,547.34x = 167,734.98 × 67,831.74
  4. Step 4: Simplify right side
    121,547.34x = 11,377,755,552.27
  5. Step 5: Solve for x
    x = 11,377,755,552.27/121,547.34
  6. Step 6: Final answer
    x = 93,607.61

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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.