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Finding the Fourth Proportional to 103,610.40, 155,415.60 and 94,970.40

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Solution

The fourth proportional to 103,610.40, 155,415.60 and 94,970.40 is: 142,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.40 : 155,415.60 = 94,970.40 : x
  2. Step 2: Convert to fraction form
    103,610.40/155,415.60 = 94,970.40/x
  3. Step 3: Cross multiply
    103,610.40x = 155,415.60 × 94,970.40
  4. Step 4: Simplify right side
    103,610.40x = 14,759,881,698.24
  5. Step 5: Solve for x
    x = 14,759,881,698.24/103,610.40
  6. Step 6: Final answer
    x = 142,455.60

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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.