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Finding the Fourth Proportional to 312,165.01, 430,741.55 and 183,054.79

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Solution

The fourth proportional to 312,165.01, 430,741.55 and 183,054.79 is: 252,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,165.01 : 430,741.55 = 183,054.79 : x
  2. Step 2: Convert to fraction form
    312,165.01/430,741.55 = 183,054.79/x
  3. Step 3: Cross multiply
    312,165.01x = 430,741.55 × 183,054.79
  4. Step 4: Simplify right side
    312,165.01x = 78,849,302,681.38
  5. Step 5: Solve for x
    x = 78,849,302,681.38/312,165.01
  6. Step 6: Final answer
    x = 252,588.53

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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.