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Finding the Fourth Proportional to 117,124.16, 161,630.22 and 63,407.80

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Solution

The fourth proportional to 117,124.16, 161,630.22 and 63,407.80 is: 87,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,124.16 : 161,630.22 = 63,407.80 : x
  2. Step 2: Convert to fraction form
    117,124.16/161,630.22 = 63,407.80/x
  3. Step 3: Cross multiply
    117,124.16x = 161,630.22 × 63,407.80
  4. Step 4: Simplify right side
    117,124.16x = 10,248,616,663.72
  5. Step 5: Solve for x
    x = 10,248,616,663.72/117,124.16
  6. Step 6: Final answer
    x = 87,502.16

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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.