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Finding the Fourth Proportional to 103,627.19, 143,004.80 and 58,915.19

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Solution

The fourth proportional to 103,627.19, 143,004.80 and 58,915.19 is: 81,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.19 : 143,004.80 = 58,915.19 : x
  2. Step 2: Convert to fraction form
    103,627.19/143,004.80 = 58,915.19/x
  3. Step 3: Cross multiply
    103,627.19x = 143,004.80 × 58,915.19
  4. Step 4: Simplify right side
    103,627.19x = 8,425,154,962.91
  5. Step 5: Solve for x
    x = 8,425,154,962.91/103,627.19
  6. Step 6: Final answer
    x = 81,302.55

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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.