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Finding the Fourth Proportional to 127,597.12, 176,064.16 and 71,008.32

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Solution

The fourth proportional to 127,597.12, 176,064.16 and 71,008.32 is: 97,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,597.12 : 176,064.16 = 71,008.32 : x
  2. Step 2: Convert to fraction form
    127,597.12/176,064.16 = 71,008.32/x
  3. Step 3: Cross multiply
    127,597.12x = 176,064.16 × 71,008.32
  4. Step 4: Simplify right side
    127,597.12x = 12,502,020,213.81
  5. Step 5: Solve for x
    x = 12,502,020,213.81/127,597.12
  6. Step 6: Final answer
    x = 97,980.43

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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.