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Finding the Fourth Proportional to 157,147.94, 216,860.04 and 85,526.48

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Solution

The fourth proportional to 157,147.94, 216,860.04 and 85,526.48 is: 118,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,147.94 : 216,860.04 = 85,526.48 : x
  2. Step 2: Convert to fraction form
    157,147.94/216,860.04 = 85,526.48/x
  3. Step 3: Cross multiply
    157,147.94x = 216,860.04 × 85,526.48
  4. Step 4: Simplify right side
    157,147.94x = 18,547,275,873.86
  5. Step 5: Solve for x
    x = 18,547,275,873.86/157,147.94
  6. Step 6: Final answer
    x = 118,024.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.