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Finding the Fourth Proportional to 98,598, 136,068.60 and 53,888.88

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Solution

The fourth proportional to 98,598, 136,068.60 and 53,888.88 is: 74,368.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,598 : 136,068.60 = 53,888.88 : x
  2. Step 2: Convert to fraction form
    98,598/136,068.60 = 53,888.88/x
  3. Step 3: Cross multiply
    98,598x = 136,068.60 × 53,888.88
  4. Step 4: Simplify right side
    98,598x = 7,332,584,457.17
  5. Step 5: Solve for x
    x = 7,332,584,457.17/98,598
  6. Step 6: Final answer
    x = 74,368.49

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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.