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Finding the Fourth Proportional to 130,437.80, 195,656.70 and 109,701.80

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Solution

The fourth proportional to 130,437.80, 195,656.70 and 109,701.80 is: 164,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,437.80 : 195,656.70 = 109,701.80 : x
  2. Step 2: Convert to fraction form
    130,437.80/195,656.70 = 109,701.80/x
  3. Step 3: Cross multiply
    130,437.80x = 195,656.70 × 109,701.80
  4. Step 4: Simplify right side
    130,437.80x = 21,463,892,172.06
  5. Step 5: Solve for x
    x = 21,463,892,172.06/130,437.80
  6. Step 6: Final answer
    x = 164,552.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.