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Finding the Fourth Proportional to 312,069.58, 430,667.07 and 176,095.60

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Solution

The fourth proportional to 312,069.58, 430,667.07 and 176,095.60 is: 243,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,069.58 : 430,667.07 = 176,095.60 : x
  2. Step 2: Convert to fraction form
    312,069.58/430,667.07 = 176,095.60/x
  3. Step 3: Cross multiply
    312,069.58x = 430,667.07 × 176,095.60
  4. Step 4: Simplify right side
    312,069.58x = 75,838,576,091.89
  5. Step 5: Solve for x
    x = 75,838,576,091.89/312,069.58
  6. Step 6: Final answer
    x = 243,018.16

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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.