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Finding the Fourth Proportional to 117,316.32, 161,679.36 and 83,326.32

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Solution

The fourth proportional to 117,316.32, 161,679.36 and 83,326.32 is: 114,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,316.32 : 161,679.36 = 83,326.32 : x
  2. Step 2: Convert to fraction form
    117,316.32/161,679.36 = 83,326.32/x
  3. Step 3: Cross multiply
    117,316.32x = 161,679.36 × 83,326.32
  4. Step 4: Simplify right side
    117,316.32x = 13,472,146,088.76
  5. Step 5: Solve for x
    x = 13,472,146,088.76/117,316.32
  6. Step 6: Final answer
    x = 114,836.08

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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.