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Finding the Fourth Proportional to 115,510.56, 159,407.16 and 67,798.32

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Solution

The fourth proportional to 115,510.56, 159,407.16 and 67,798.32 is: 93,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,510.56 : 159,407.16 = 67,798.32 : x
  2. Step 2: Convert to fraction form
    115,510.56/159,407.16 = 67,798.32/x
  3. Step 3: Cross multiply
    115,510.56x = 159,407.16 × 67,798.32
  4. Step 4: Simplify right side
    115,510.56x = 10,807,537,643.97
  5. Step 5: Solve for x
    x = 10,807,537,643.97/115,510.56
  6. Step 6: Final answer
    x = 93,563.20

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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.