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Finding the Fourth Proportional to 370,806.65, 556,292.76 and 157,581.32

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Solution

The fourth proportional to 370,806.65, 556,292.76 and 157,581.32 is: 236,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,806.65 : 556,292.76 = 157,581.32 : x
  2. Step 2: Convert to fraction form
    370,806.65/556,292.76 = 157,581.32/x
  3. Step 3: Cross multiply
    370,806.65x = 556,292.76 × 157,581.32
  4. Step 4: Simplify right side
    370,806.65x = 87,661,346,639.34
  5. Step 5: Solve for x
    x = 87,661,346,639.34/370,806.65
  6. Step 6: Final answer
    x = 236,407.16

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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.