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Finding the Fourth Proportional to 152,367.75, 210,197.72 and 98,670.06

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Solution

The fourth proportional to 152,367.75, 210,197.72 and 98,670.06 is: 136,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,367.75 : 210,197.72 = 98,670.06 : x
  2. Step 2: Convert to fraction form
    152,367.75/210,197.72 = 98,670.06/x
  3. Step 3: Cross multiply
    152,367.75x = 210,197.72 × 98,670.06
  4. Step 4: Simplify right side
    152,367.75x = 20,740,221,890.94
  5. Step 5: Solve for x
    x = 20,740,221,890.94/152,367.75
  6. Step 6: Final answer
    x = 136,119.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.