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Finding the Fourth Proportional to 152,487.63, 210,426.86 and 84,507.51

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Solution

The fourth proportional to 152,487.63, 210,426.86 and 84,507.51 is: 116,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,487.63 : 210,426.86 = 84,507.51 : x
  2. Step 2: Convert to fraction form
    152,487.63/210,426.86 = 84,507.51/x
  3. Step 3: Cross multiply
    152,487.63x = 210,426.86 × 84,507.51
  4. Step 4: Simplify right side
    152,487.63x = 17,782,649,553.18
  5. Step 5: Solve for x
    x = 17,782,649,553.18/152,487.63
  6. Step 6: Final answer
    x = 116,617.00

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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.