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Finding the Fourth Proportional to 130,299.88, 179,814.18 and 70,683.88

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Solution

The fourth proportional to 130,299.88, 179,814.18 and 70,683.88 is: 97,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,299.88 : 179,814.18 = 70,683.88 : x
  2. Step 2: Convert to fraction form
    130,299.88/179,814.18 = 70,683.88/x
  3. Step 3: Cross multiply
    130,299.88x = 179,814.18 × 70,683.88
  4. Step 4: Simplify right side
    130,299.88x = 12,709,963,921.42
  5. Step 5: Solve for x
    x = 12,709,963,921.42/130,299.88
  6. Step 6: Final answer
    x = 97,543.94

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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.