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Finding the Fourth Proportional to 127,885.50, 176,479.65 and 70,530.12

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Solution

The fourth proportional to 127,885.50, 176,479.65 and 70,530.12 is: 97,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,885.50 : 176,479.65 = 70,530.12 : x
  2. Step 2: Convert to fraction form
    127,885.50/176,479.65 = 70,530.12/x
  3. Step 3: Cross multiply
    127,885.50x = 176,479.65 × 70,530.12
  4. Step 4: Simplify right side
    127,885.50x = 12,447,130,892.06
  5. Step 5: Solve for x
    x = 12,447,130,892.06/127,885.50
  6. Step 6: Final answer
    x = 97,330.28

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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.