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Finding the Fourth Proportional to 98,366.40, 137,975.40 and 98,366.40

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Solution

The fourth proportional to 98,366.40, 137,975.40 and 98,366.40 is: 137,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,366.40 : 137,975.40 = 98,366.40 : x
  2. Step 2: Convert to fraction form
    98,366.40/137,975.40 = 98,366.40/x
  3. Step 3: Cross multiply
    98,366.40x = 137,975.40 × 98,366.40
  4. Step 4: Simplify right side
    98,366.40x = 13,572,143,386.56
  5. Step 5: Solve for x
    x = 13,572,143,386.56/98,366.40
  6. Step 6: Final answer
    x = 137,975.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.