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Finding the Fourth Proportional to 111,594.72, 154,004.40 and 61,298.40

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Solution

The fourth proportional to 111,594.72, 154,004.40 and 61,298.40 is: 84,593.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,594.72 : 154,004.40 = 61,298.40 : x
  2. Step 2: Convert to fraction form
    111,594.72/154,004.40 = 61,298.40/x
  3. Step 3: Cross multiply
    111,594.72x = 154,004.40 × 61,298.40
  4. Step 4: Simplify right side
    111,594.72x = 9,440,223,312.96
  5. Step 5: Solve for x
    x = 9,440,223,312.96/111,594.72
  6. Step 6: Final answer
    x = 84,593.82

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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.