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Finding the Fourth Proportional to 103,807.30, 155,653.35 and 41,407.30

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Solution

The fourth proportional to 103,807.30, 155,653.35 and 41,407.30 is: 62,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,807.30 : 155,653.35 = 41,407.30 : x
  2. Step 2: Convert to fraction form
    103,807.30/155,653.35 = 41,407.30/x
  3. Step 3: Cross multiply
    103,807.30x = 155,653.35 × 41,407.30
  4. Step 4: Simplify right side
    103,807.30x = 6,445,184,959.46
  5. Step 5: Solve for x
    x = 6,445,184,959.46/103,807.30
  6. Step 6: Final answer
    x = 62,087.97

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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.