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Finding the Fourth Proportional to 153,459.81, 211,785.18 and 93,033

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Solution

The fourth proportional to 153,459.81, 211,785.18 and 93,033 is: 128,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,459.81 : 211,785.18 = 93,033 : x
  2. Step 2: Convert to fraction form
    153,459.81/211,785.18 = 93,033/x
  3. Step 3: Cross multiply
    153,459.81x = 211,785.18 × 93,033
  4. Step 4: Simplify right side
    153,459.81x = 19,703,010,302.07
  5. Step 5: Solve for x
    x = 19,703,010,302.07/153,459.81
  6. Step 6: Final answer
    x = 128,391.99

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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.