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Finding the Fourth Proportional to 152,698.86, 210,749.72 and 84,737.67

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Solution

The fourth proportional to 152,698.86, 210,749.72 and 84,737.67 is: 116,952.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,698.86 : 210,749.72 = 84,737.67 : x
  2. Step 2: Convert to fraction form
    152,698.86/210,749.72 = 84,737.67/x
  3. Step 3: Cross multiply
    152,698.86x = 210,749.72 × 84,737.67
  4. Step 4: Simplify right side
    152,698.86x = 17,858,439,011.95
  5. Step 5: Solve for x
    x = 17,858,439,011.95/152,698.86
  6. Step 6: Final answer
    x = 116,952.01

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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.