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Finding the Fourth Proportional to 553,516.66, 830,391.63 and 179,510.50

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Solution

The fourth proportional to 553,516.66, 830,391.63 and 179,510.50 is: 269,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,516.66 : 830,391.63 = 179,510.50 : x
  2. Step 2: Convert to fraction form
    553,516.66/830,391.63 = 179,510.50/x
  3. Step 3: Cross multiply
    553,516.66x = 830,391.63 × 179,510.50
  4. Step 4: Simplify right side
    553,516.66x = 149,064,016,697.12
  5. Step 5: Solve for x
    x = 149,064,016,697.12/553,516.66
  6. Step 6: Final answer
    x = 269,303.58

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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.