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Finding the Fourth Proportional to 353,150.70, 530,017.65 and 163,902.30

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Solution

The fourth proportional to 353,150.70, 530,017.65 and 163,902.30 is: 245,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,150.70 : 530,017.65 = 163,902.30 : x
  2. Step 2: Convert to fraction form
    353,150.70/530,017.65 = 163,902.30/x
  3. Step 3: Cross multiply
    353,150.70x = 530,017.65 × 163,902.30
  4. Step 4: Simplify right side
    353,150.70x = 86,871,111,875.60
  5. Step 5: Solve for x
    x = 86,871,111,875.60/353,150.70
  6. Step 6: Final answer
    x = 245,988.79

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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.