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Finding the Fourth Proportional to 210,679, 316,018.50 and 62,935

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Solution

The fourth proportional to 210,679, 316,018.50 and 62,935 is: 94,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,679 : 316,018.50 = 62,935 : x
  2. Step 2: Convert to fraction form
    210,679/316,018.50 = 62,935/x
  3. Step 3: Cross multiply
    210,679x = 316,018.50 × 62,935
  4. Step 4: Simplify right side
    210,679x = 19,888,624,297.50
  5. Step 5: Solve for x
    x = 19,888,624,297.50/210,679
  6. Step 6: Final answer
    x = 94,402.50

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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.