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Finding the Fourth Proportional to 191,032.40, 286,548.60 and 172,661.60

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Solution

The fourth proportional to 191,032.40, 286,548.60 and 172,661.60 is: 258,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,032.40 : 286,548.60 = 172,661.60 : x
  2. Step 2: Convert to fraction form
    191,032.40/286,548.60 = 172,661.60/x
  3. Step 3: Cross multiply
    191,032.40x = 286,548.60 × 172,661.60
  4. Step 4: Simplify right side
    191,032.40x = 49,475,939,753.76
  5. Step 5: Solve for x
    x = 49,475,939,753.76/191,032.40
  6. Step 6: Final answer
    x = 258,992.40

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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.