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Finding the Fourth Proportional to 206,763.54, 310,188.35 and 64,603.07

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Solution

The fourth proportional to 206,763.54, 310,188.35 and 64,603.07 is: 96,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,763.54 : 310,188.35 = 64,603.07 : x
  2. Step 2: Convert to fraction form
    206,763.54/310,188.35 = 64,603.07/x
  3. Step 3: Cross multiply
    206,763.54x = 310,188.35 × 64,603.07
  4. Step 4: Simplify right side
    206,763.54x = 20,039,119,688.23
  5. Step 5: Solve for x
    x = 20,039,119,688.23/206,763.54
  6. Step 6: Final answer
    x = 96,918.05

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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.