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Finding the Fourth Proportional to 346,155, 477,693.90 and 187,179

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Solution

The fourth proportional to 346,155, 477,693.90 and 187,179 is: 258,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,155 : 477,693.90 = 187,179 : x
  2. Step 2: Convert to fraction form
    346,155/477,693.90 = 187,179/x
  3. Step 3: Cross multiply
    346,155x = 477,693.90 × 187,179
  4. Step 4: Simplify right side
    346,155x = 89,414,266,508.10
  5. Step 5: Solve for x
    x = 89,414,266,508.10/346,155
  6. Step 6: Final answer
    x = 258,307.02

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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.