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Finding the Fourth Proportional to 111,875.84, 154,395.52 and 61,585.92

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Solution

The fourth proportional to 111,875.84, 154,395.52 and 61,585.92 is: 84,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875.84 : 154,395.52 = 61,585.92 : x
  2. Step 2: Convert to fraction form
    111,875.84/154,395.52 = 61,585.92/x
  3. Step 3: Cross multiply
    111,875.84x = 154,395.52 × 61,585.92
  4. Step 4: Simplify right side
    111,875.84x = 9,508,590,143.08
  5. Step 5: Solve for x
    x = 9,508,590,143.08/111,875.84
  6. Step 6: Final answer
    x = 84,992.35

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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.