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Finding the Fourth Proportional to 249,645.30, 374,212.80 and 123,090.90

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Solution

The fourth proportional to 249,645.30, 374,212.80 and 123,090.90 is: 184,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,645.30 : 374,212.80 = 123,090.90 : x
  2. Step 2: Convert to fraction form
    249,645.30/374,212.80 = 123,090.90/x
  3. Step 3: Cross multiply
    249,645.30x = 374,212.80 × 123,090.90
  4. Step 4: Simplify right side
    249,645.30x = 46,062,190,343.52
  5. Step 5: Solve for x
    x = 46,062,190,343.52/249,645.30
  6. Step 6: Final answer
    x = 184,510.54

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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.