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Finding the Fourth Proportional to 346,653, 519,913.74 and 168,981.32

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Solution

The fourth proportional to 346,653, 519,913.74 and 168,981.32 is: 253,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,653 : 519,913.74 = 168,981.32 : x
  2. Step 2: Convert to fraction form
    346,653/519,913.74 = 168,981.32/x
  3. Step 3: Cross multiply
    346,653x = 519,913.74 × 168,981.32
  4. Step 4: Simplify right side
    346,653x = 87,855,710,071.34
  5. Step 5: Solve for x
    x = 87,855,710,071.34/346,653
  6. Step 6: Final answer
    x = 253,439.92

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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.