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Finding the Fourth Proportional to 371,312.72, 556,990.43 and 105,050.91

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Solution

The fourth proportional to 371,312.72, 556,990.43 and 105,050.91 is: 157,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,312.72 : 556,990.43 = 105,050.91 : x
  2. Step 2: Convert to fraction form
    371,312.72/556,990.43 = 105,050.91/x
  3. Step 3: Cross multiply
    371,312.72x = 556,990.43 × 105,050.91
  4. Step 4: Simplify right side
    371,312.72x = 58,512,351,007.54
  5. Step 5: Solve for x
    x = 58,512,351,007.54/371,312.72
  6. Step 6: Final answer
    x = 157,582.41

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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.