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Finding the Fourth Proportional to 115,570.90, 173,356.35 and 97,856.20

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Solution

The fourth proportional to 115,570.90, 173,356.35 and 97,856.20 is: 146,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,570.90 : 173,356.35 = 97,856.20 : x
  2. Step 2: Convert to fraction form
    115,570.90/173,356.35 = 97,856.20/x
  3. Step 3: Cross multiply
    115,570.90x = 173,356.35 × 97,856.20
  4. Step 4: Simplify right side
    115,570.90x = 16,963,993,656.87
  5. Step 5: Solve for x
    x = 16,963,993,656.87/115,570.90
  6. Step 6: Final answer
    x = 146,784.30

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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.