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Finding the Fourth Proportional to 98,807.40, 148,182.30 and 39,623.40

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Solution

The fourth proportional to 98,807.40, 148,182.30 and 39,623.40 is: 59,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,807.40 : 148,182.30 = 39,623.40 : x
  2. Step 2: Convert to fraction form
    98,807.40/148,182.30 = 39,623.40/x
  3. Step 3: Cross multiply
    98,807.40x = 148,182.30 × 39,623.40
  4. Step 4: Simplify right side
    98,807.40x = 5,871,486,545.82
  5. Step 5: Solve for x
    x = 5,871,486,545.82/98,807.40
  6. Step 6: Final answer
    x = 59,423.55

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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.