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Finding the Fourth Proportional to 346,551, 478,241.82 and 187,575

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Solution

The fourth proportional to 346,551, 478,241.82 and 187,575 is: 258,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,551 : 478,241.82 = 187,575 : x
  2. Step 2: Convert to fraction form
    346,551/478,241.82 = 187,575/x
  3. Step 3: Cross multiply
    346,551x = 478,241.82 × 187,575
  4. Step 4: Simplify right side
    346,551x = 89,706,209,386.50
  5. Step 5: Solve for x
    x = 89,706,209,386.50/346,551
  6. Step 6: Final answer
    x = 258,854.28

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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.