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Finding the Fourth Proportional to 124,461.03, 171,706.03 and 72,038.51

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Solution

The fourth proportional to 124,461.03, 171,706.03 and 72,038.51 is: 99,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,461.03 : 171,706.03 = 72,038.51 : x
  2. Step 2: Convert to fraction form
    124,461.03/171,706.03 = 72,038.51/x
  3. Step 3: Cross multiply
    124,461.03x = 171,706.03 × 72,038.51
  4. Step 4: Simplify right side
    124,461.03x = 12,369,446,559.22
  5. Step 5: Solve for x
    x = 12,369,446,559.22/124,461.03
  6. Step 6: Final answer
    x = 99,384.09

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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.