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Finding the Fourth Proportional to 302,783.08, 417,851.94 and 168,655.72

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Solution

The fourth proportional to 302,783.08, 417,851.94 and 168,655.72 is: 232,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,783.08 : 417,851.94 = 168,655.72 : x
  2. Step 2: Convert to fraction form
    302,783.08/417,851.94 = 168,655.72/x
  3. Step 3: Cross multiply
    302,783.08x = 417,851.94 × 168,655.72
  4. Step 4: Simplify right side
    302,783.08x = 70,473,119,794.10
  5. Step 5: Solve for x
    x = 70,473,119,794.10/302,783.08
  6. Step 6: Final answer
    x = 232,751.18

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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.