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Finding the Fourth Proportional to 103,611.60, 155,417.40 and 95,738.40

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Solution

The fourth proportional to 103,611.60, 155,417.40 and 95,738.40 is: 143,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.60 : 155,417.40 = 95,738.40 : x
  2. Step 2: Convert to fraction form
    103,611.60/155,417.40 = 95,738.40/x
  3. Step 3: Cross multiply
    103,611.60x = 155,417.40 × 95,738.40
  4. Step 4: Simplify right side
    103,611.60x = 14,879,413,208.16
  5. Step 5: Solve for x
    x = 14,879,413,208.16/103,611.60
  6. Step 6: Final answer
    x = 143,607.60

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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.