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Finding the Fourth Proportional to 105,235.49, 157,915.50 and 38,722.32

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Solution

The fourth proportional to 105,235.49, 157,915.50 and 38,722.32 is: 58,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,235.49 : 157,915.50 = 38,722.32 : x
  2. Step 2: Convert to fraction form
    105,235.49/157,915.50 = 38,722.32/x
  3. Step 3: Cross multiply
    105,235.49x = 157,915.50 × 38,722.32
  4. Step 4: Simplify right side
    105,235.49x = 6,114,854,669.17
  5. Step 5: Solve for x
    x = 6,114,854,669.17/105,235.49
  6. Step 6: Final answer
    x = 58,106.40

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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.