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Finding the Fourth Proportional to 101,915.74, 152,814.75 and 39,513.34

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Solution

The fourth proportional to 101,915.74, 152,814.75 and 39,513.34 is: 59,247.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.74 : 152,814.75 = 39,513.34 : x
  2. Step 2: Convert to fraction form
    101,915.74/152,814.75 = 39,513.34/x
  3. Step 3: Cross multiply
    101,915.74x = 152,814.75 × 39,513.34
  4. Step 4: Simplify right side
    101,915.74x = 6,038,221,173.77
  5. Step 5: Solve for x
    x = 6,038,221,173.77/101,915.74
  6. Step 6: Final answer
    x = 59,247.19

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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.