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Finding the Fourth Proportional to 190,852.60, 286,278.90 and 66,193.60

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Solution

The fourth proportional to 190,852.60, 286,278.90 and 66,193.60 is: 99,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,852.60 : 286,278.90 = 66,193.60 : x
  2. Step 2: Convert to fraction form
    190,852.60/286,278.90 = 66,193.60/x
  3. Step 3: Cross multiply
    190,852.60x = 286,278.90 × 66,193.60
  4. Step 4: Simplify right side
    190,852.60x = 18,949,830,995.04
  5. Step 5: Solve for x
    x = 18,949,830,995.04/190,852.60
  6. Step 6: Final answer
    x = 99,290.40

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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.