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Finding the Fourth Proportional to 103,611.60, 155,417.40 and 101,883.60

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Solution

The fourth proportional to 103,611.60, 155,417.40 and 101,883.60 is: 152,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.60 : 155,417.40 = 101,883.60 : x
  2. Step 2: Convert to fraction form
    103,611.60/155,417.40 = 101,883.60/x
  3. Step 3: Cross multiply
    103,611.60x = 155,417.40 × 101,883.60
  4. Step 4: Simplify right side
    103,611.60x = 15,834,484,214.64
  5. Step 5: Solve for x
    x = 15,834,484,214.64/103,611.60
  6. Step 6: Final answer
    x = 152,825.40

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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.