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Finding the Fourth Proportional to 341,776.80, 512,703.60 and 105,117.60

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Solution

The fourth proportional to 341,776.80, 512,703.60 and 105,117.60 is: 157,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,776.80 : 512,703.60 = 105,117.60 : x
  2. Step 2: Convert to fraction form
    341,776.80/512,703.60 = 105,117.60/x
  3. Step 3: Cross multiply
    341,776.80x = 512,703.60 × 105,117.60
  4. Step 4: Simplify right side
    341,776.80x = 53,894,171,943.36
  5. Step 5: Solve for x
    x = 53,894,171,943.36/341,776.80
  6. Step 6: Final answer
    x = 157,688.21

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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.