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Finding the Fourth Proportional to 98,815.40, 148,223.10 and 46,275.56

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Solution

The fourth proportional to 98,815.40, 148,223.10 and 46,275.56 is: 69,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,815.40 : 148,223.10 = 46,275.56 : x
  2. Step 2: Convert to fraction form
    98,815.40/148,223.10 = 46,275.56/x
  3. Step 3: Cross multiply
    98,815.40x = 148,223.10 × 46,275.56
  4. Step 4: Simplify right side
    98,815.40x = 6,859,106,957.44
  5. Step 5: Solve for x
    x = 6,859,106,957.44/98,815.40
  6. Step 6: Final answer
    x = 69,413.34

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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.