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Finding the Fourth Proportional to 124,368.93, 171,629.71 and 70,656.89

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Solution

The fourth proportional to 124,368.93, 171,629.71 and 70,656.89 is: 97,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.93 : 171,629.71 = 70,656.89 : x
  2. Step 2: Convert to fraction form
    124,368.93/171,629.71 = 70,656.89/x
  3. Step 3: Cross multiply
    124,368.93x = 171,629.71 × 70,656.89
  4. Step 4: Simplify right side
    124,368.93x = 12,126,821,792.63
  5. Step 5: Solve for x
    x = 12,126,821,792.63/124,368.93
  6. Step 6: Final answer
    x = 97,506.84

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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.