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Finding the Fourth Proportional to 356,673.84, 535,039.88 and 146,313.60

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Solution

The fourth proportional to 356,673.84, 535,039.88 and 146,313.60 is: 219,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,673.84 : 535,039.88 = 146,313.60 : x
  2. Step 2: Convert to fraction form
    356,673.84/535,039.88 = 146,313.60/x
  3. Step 3: Cross multiply
    356,673.84x = 535,039.88 × 146,313.60
  4. Step 4: Simplify right side
    356,673.84x = 78,283,610,986.37
  5. Step 5: Solve for x
    x = 78,283,610,986.37/356,673.84
  6. Step 6: Final answer
    x = 219,482.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.