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Finding the Fourth Proportional to 93,281.04, 128,724.04 and 50,838.64

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Solution

The fourth proportional to 93,281.04, 128,724.04 and 50,838.64 is: 70,155.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,281.04 : 128,724.04 = 50,838.64 : x
  2. Step 2: Convert to fraction form
    93,281.04/128,724.04 = 50,838.64/x
  3. Step 3: Cross multiply
    93,281.04x = 128,724.04 × 50,838.64
  4. Step 4: Simplify right side
    93,281.04x = 6,544,155,128.91
  5. Step 5: Solve for x
    x = 6,544,155,128.91/93,281.04
  6. Step 6: Final answer
    x = 70,155.25

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1.5x scale

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.