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Finding the Fourth Proportional to 109,737.80, 164,412.30 and 93,019.40

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Solution

The fourth proportional to 109,737.80, 164,412.30 and 93,019.40 is: 139,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,737.80 : 164,412.30 = 93,019.40 : x
  2. Step 2: Convert to fraction form
    109,737.80/164,412.30 = 93,019.40/x
  3. Step 3: Cross multiply
    109,737.80x = 164,412.30 × 93,019.40
  4. Step 4: Simplify right side
    109,737.80x = 15,293,533,498.62
  5. Step 5: Solve for x
    x = 15,293,533,498.62/109,737.80
  6. Step 6: Final answer
    x = 139,364.32

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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.