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Finding the Fourth Proportional to 121,461.52, 167,571.71 and 70,445.64

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Solution

The fourth proportional to 121,461.52, 167,571.71 and 70,445.64 is: 97,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461.52 : 167,571.71 = 70,445.64 : x
  2. Step 2: Convert to fraction form
    121,461.52/167,571.71 = 70,445.64/x
  3. Step 3: Cross multiply
    121,461.52x = 167,571.71 × 70,445.64
  4. Step 4: Simplify right side
    121,461.52x = 11,804,696,004.62
  5. Step 5: Solve for x
    x = 11,804,696,004.62/121,461.52
  6. Step 6: Final answer
    x = 97,188.77

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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.