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Finding the Fourth Proportional to 225,317.16, 310,916.37 and 134,655.06

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Solution

The fourth proportional to 225,317.16, 310,916.37 and 134,655.06 is: 185,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,317.16 : 310,916.37 = 134,655.06 : x
  2. Step 2: Convert to fraction form
    225,317.16/310,916.37 = 134,655.06/x
  3. Step 3: Cross multiply
    225,317.16x = 310,916.37 × 134,655.06
  4. Step 4: Simplify right side
    225,317.16x = 41,866,462,457.33
  5. Step 5: Solve for x
    x = 41,866,462,457.33/225,317.16
  6. Step 6: Final answer
    x = 185,811.25

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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.