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Finding the Fourth Proportional to 130,018.55, 195,034.23 and 67,810.55

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Solution

The fourth proportional to 130,018.55, 195,034.23 and 67,810.55 is: 101,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.55 : 195,034.23 = 67,810.55 : x
  2. Step 2: Convert to fraction form
    130,018.55/195,034.23 = 67,810.55/x
  3. Step 3: Cross multiply
    130,018.55x = 195,034.23 × 67,810.55
  4. Step 4: Simplify right side
    130,018.55x = 13,225,378,066.07
  5. Step 5: Solve for x
    x = 13,225,378,066.07/130,018.55
  6. Step 6: Final answer
    x = 101,719.16

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1.5x scale

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.