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Finding the Fourth Proportional to 318,153.84, 439,052.58 and 174,916.32

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Solution

The fourth proportional to 318,153.84, 439,052.58 and 174,916.32 is: 241,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,153.84 : 439,052.58 = 174,916.32 : x
  2. Step 2: Convert to fraction form
    318,153.84/439,052.58 = 174,916.32/x
  3. Step 3: Cross multiply
    318,153.84x = 439,052.58 × 174,916.32
  4. Step 4: Simplify right side
    318,153.84x = 76,797,461,580.11
  5. Step 5: Solve for x
    x = 76,797,461,580.11/318,153.84
  6. Step 6: Final answer
    x = 241,384.68

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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.