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Finding the Fourth Proportional to 190,953.80, 286,041.90 and 97,512.20

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Solution

The fourth proportional to 190,953.80, 286,041.90 and 97,512.20 is: 146,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,953.80 : 286,041.90 = 97,512.20 : x
  2. Step 2: Convert to fraction form
    190,953.80/286,041.90 = 97,512.20/x
  3. Step 3: Cross multiply
    190,953.80x = 286,041.90 × 97,512.20
  4. Step 4: Simplify right side
    190,953.80x = 27,892,574,961.18
  5. Step 5: Solve for x
    x = 27,892,574,961.18/190,953.80
  6. Step 6: Final answer
    x = 146,069.76

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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.