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Finding the Fourth Proportional to 98,847.60, 148,069.80 and 61,292.40

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Solution

The fourth proportional to 98,847.60, 148,069.80 and 61,292.40 is: 91,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,847.60 : 148,069.80 = 61,292.40 : x
  2. Step 2: Convert to fraction form
    98,847.60/148,069.80 = 61,292.40/x
  3. Step 3: Cross multiply
    98,847.60x = 148,069.80 × 61,292.40
  4. Step 4: Simplify right side
    98,847.60x = 9,075,553,409.52
  5. Step 5: Solve for x
    x = 9,075,553,409.52/98,847.60
  6. Step 6: Final answer
    x = 91,813.59

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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.