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Finding the Fourth Proportional to 523,626.70, 785,485.52 and 144,547.72

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Solution

The fourth proportional to 523,626.70, 785,485.52 and 144,547.72 is: 216,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,626.70 : 785,485.52 = 144,547.72 : x
  2. Step 2: Convert to fraction form
    523,626.70/785,485.52 = 144,547.72/x
  3. Step 3: Cross multiply
    523,626.70x = 785,485.52 × 144,547.72
  4. Step 4: Simplify right side
    523,626.70x = 113,540,141,009.01
  5. Step 5: Solve for x
    x = 113,540,141,009.01/523,626.70
  6. Step 6: Final answer
    x = 216,834.13

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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.