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Finding the Fourth Proportional to 201,641.10, 302,461.65 and 191,799.60

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Solution

The fourth proportional to 201,641.10, 302,461.65 and 191,799.60 is: 287,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,641.10 : 302,461.65 = 191,799.60 : x
  2. Step 2: Convert to fraction form
    201,641.10/302,461.65 = 191,799.60/x
  3. Step 3: Cross multiply
    201,641.10x = 302,461.65 × 191,799.60
  4. Step 4: Simplify right side
    201,641.10x = 58,012,023,485.34
  5. Step 5: Solve for x
    x = 58,012,023,485.34/201,641.10
  6. Step 6: Final answer
    x = 287,699.40

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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.